A good coin catalog, such as the Standard Catalog of World Coins lists every denomination, date, and mint mark, and gives pricing info for every entry. Scanning the entries, no denominations, dates, or mint marks stand out as extra special; they are all about the same value. The key driver of value is condition. The coins in our pictures would sell retail in the $75 to $150 range. If a dealer were buying them, he or she would pay roughly half the retail numbers. The mark-up is required to keep the dealership in business.